Linear-energy-transfer effects on the radiolysis of liquid water at temperatures up to 300°C – a Monte-Carlo study
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- 作者：Hervé ; du Penhoat ; Marie-Anne ; Meesungnoen ; Jintana ; Goulet ; Thomas ; Filali-Mouhim ; Abdelali ; et. al.
- 刊名：Chemical Physics Letters
- 出版年：2001
- 出版时间：June 15, 2001
- 年：2001
- 卷：341
- 期：1-2
- 页码：135-143
- 全文大小：207 K
文摘
Monte-Carlo simulations are used to calculate the primary radical and molecular yields (g-values) of water radiolysis versus temperature in the range 25–300°C, for different high linear energy transfer radiations (protons, 2H+, and 7Li3+) up to 
65keV/μm. The results are compared, at 10−7 s, to experimental data at 25°C, 95°C, and 180°C. Excellent agreement is obtained for g(e−aq) and g(
OH) over the whole temperature range, but g(H2), [g(H)+g(H2)], and g(H2O2) are substantially larger than the measured values at 180°C. Our g-values are also compared with fast-neutron radiolysis yields and with deterministic modeling calculations. The agreement is generally satisfactory.
65keV/μm. The results are compared, at 10−7 s, to experimental data at 25°C, 95°C, and 180°C. Excellent agreement is obtained for g(e−aq) and g(OH) over the whole temperature range, but g(H2), [g(H)+g(H2)], and g(H2O2) are substantially larger than the measured values at 180°C. Our g-values are also compared with fast-neutron radiolysis yields and with deterministic modeling calculations. The agreement is generally satisfactory.